1
Safety Precautions
To use the device properly and safely, read the safety precautions carefully before using the
device and strictly observe these precautions when using the device.
Safety precautions:
Do not look directly into the optical port without eye protection.
Keep the device out of the reach of children as the components or accessories may be swallowed.
The power supply voltage of the device must meet the requirements on the input voltage of the device.
If the power adapter is damaged and its internal circuit is exposed due to man-made factors, do not touch
the exposed circuit, which may bring safety risks.
Prevent objects, such as metal, from entering the device through the heat dissipation hole.
Dry your hands before connecting or disconnecting cables. Stop the device and switch off the power
before connecting or disconnecting cables.
Switch off the power and disconnect all cables, including the power cable, optical fiber, and network
cable, during periods of lightning activities. The socket-outlet shall be installed near the power adapter
and shall be easily accessible. Before use the power adapter, please check no damage on the adapter.
Do not lead the strength member of the optical fiber or other metal parts indoors. Do not install network
cables, power adapters or power adapter cables outdoors. Adopting these measures will help prevent
device damage and bodily injuries which are especially prone during thunderstorms.
Install the device according to the requirements of the manufacturer. To be specific, reserve at least 10 cm
for heat dissipation at the top and four sides of the device, keep the device away from flammable objects,
highly magnetic or electric devices, such as microwave ovens, refrigerators, and mobile phones.
Do not place any object on the device, so that the device will not be damaged due to overheating or
deformation.
If an abnormality occurs, for example, liquid entering the device, smoke, unusual sound, and smell, stop
the device immediately, switch off the power, disconnect all cables (such as the power cable, optical cable,
and network cable) to the device, and contact the authorized service center.
Do not disassemble the device without permission. In the case of a device fault, contact the authorized
service center.
Dispose of the packing materials, expired batteries, and old or abandoned devices in accordance to local
laws and regulations (recycling them is strongly recommended).
Do not change the structure, safety design, or performance design of the device without prior
authorization.
Fireproof precautions:
Keep the device away from large heat source equipment, bare flames, and high-power devices, such as
electric heaters, candles, and blow drier, to eliminate safety risks.
If there are aged cables or power socket facilities on the power supply line to or near the device, replace
them in time to eliminate safety risks. The power supply voltage of the device must meet the input voltage
requirement.
